Isolated Shallow Marine Sand Bodies: Deposits for all Interpretations
John W. Snedden, Katherine M. Bergman, 1999. "Isolated Shallow Marine Sand Bodies: Deposits for all Interpretations", Isolated Shallow Marine Sand Bodies: Sequence Stratigraphic Analysis and Sedimentologic Interpretation, Katherine M. Bergman, John W. Snedden
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Isolated shallow marine sand bodies detached from coeval coastal deposits and encased in marine mudstone have been a focus of research and exploration in sedimentary geology for over 30 years. Yet, their origin and occurrence continues to spark debate and motivate explorationists interested in accessing the hydrocarbons within these reservoirs. Interpretations of these complex and enigmatic sand bodies have evolved from genetic models based on physical and biological sedimentary structures to regional sequence stratigraphic models invoking allocyclic processes. This evolution of interpretation parallels the stepwise progression of sedimentary geology as a whole. The Shannon Sandstone of Wyoming is a well-documented example of this type of sand body that was originally interpreted as a shelf sand ridge on the basis of sedimentary structures and external geometry. Addition of local and regional stratigraphic studies have generated new ideas involving incised shoreface and estuarine valley-fill models. Determination of the correct model is critical, as the various interpretations imply significant differences in exploration approach and production characteristics.
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Isolated Shallow Marine Sand Bodies: Sequence Stratigraphic Analysis and Sedimentologic Interpretation
Isolated Shallow Marine Sand Bodies: Sequence Stratigraphic Analysis and Sedimentologic Interpretation - Isolated shallow marine sand bodies are significant hydrocarbon reservoirs and understanding sand body genesis and geometry is critical to successful exploration and exploitation of these deposits. Recent advances in sequence stratigraphy have rekindled and refocused the discussions surrounding these important reservoirs. This volume stems from a 1995 SEPM sponsored targeted research conference that brought together the proponents of the differing interpretations to discuss facts and principles as they relate to isolated shallow marine sand bodies, using the controversial Lower Campian Shannon Sandstone as the focus for discussion.